MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) known for malicious activity. The document body, though heavily obfuscated, also contains the same redirector URL and numerous Shopify-hosted PDF links, suggesting an attempt to create a link farm for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/pify?keyword=stopping+by+woods+on+a+snowy+evening+pdf In PDF document text
- http://files.elevatedaccounting.com/uploads/1/3/1/0/131070313/335eed9a8db.pdfIn PDF document text
- http://zekutirad.happyvalleyanimalsinneed.com/uploads/1/3/2/6/132682883/3113792.pdfIn PDF document text
- http://files.xcskiing.info/uploads/1/3/1/0/131070362/xoserat.pdfIn PDF document text
- http://files.otaracommunitychurchofthenazarene.com/uploads/1/3/1/3/131398406/xakaput.pdfIn PDF document text
- http://files.baselimmunology.com/uploads/1/3/1/4/131407051/6550292.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4628/1122/files/24604705091.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9652/9314/files/jipavopojaxedapodovibeno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1992/7713/files/29888399358.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9959/4656/files/idsa_guidelines_aspergillosis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0509/9675/files/46248769094.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5048/3368/files/redexofidalabogogotori.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5497/9477/files/9131829286.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9455/6324/files/sexepozedisirewegazozo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/5254/3649/files/digeke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3446/8774/files/panotofopibemuzaduxipu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3328/8088/files/fozofupi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/somerurunem.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000693a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x693A | 5580 bytes |
SHA-256: a5ee40c6f1db747ff6085d185fd23ae937026fb4a3ff31a0feee7912b1bb44da |
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font_01_sfnt_off00007c67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C67 | 10096 bytes |
SHA-256: 5e7047194e033e0795672f7913a261d791aa3a343953e5202b98c03b2ea0e1fa |
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